Can't export audio subroles

I have assigned subroles to my audio. I want to export those subroles as individual tracks. When I do so, I cannot select subroles as separate tracks. I can only select all the dialog together. I've made a video that explains the issue.

Note that I say "roles" in the video. I meant to say "subroles".

www.dropbox.com/s/9fvnpb1496t1dso/FCPX%20Roles%20Issue.mov?dl=0

Thanks for any help!

Same problem. I can only export the whole role but no sub roles. Not sure what i'm doing wrong since it should be possible.

In the export dialogue select Audio only. Go to the Roles section and select Audio Roles as individual files from the drop down. You now need to delete the Role(s) from the list and add in a new track for each sub-role, setting it to Mono if necessary. Only put one sub role in per track or they will be mixed together. You can save the setup if you are likely to use it again from the drop-down menu. Hope that’s helpful…

Thank you. I found the problem, it was because of a compound clip. I tried exporting the "Multitrack Quicktime Movie" while inside the compound and it showed me all sub roles. When exporting the compound it can only export the entire role, no sub roles.